This episode explores why war, once a powerful tool for empires and economies, has become increasingly irrational in the modern era. Drawing from Yuval Noah Harari’s analysis, we examine how the global shift toward knowledge-based economies and the threat of nuclear and cyber warfare make large-scale conflict not only unprofitable but potentially catastrophic. While geopolitical tensions have risen since 2008, Harari argues that military aggression no longer offers the rewards it once did—unless, of course, leaders fall victim to misjudgment or outdated logic. So, is war obsolete, or are we still haunted by the ghosts of 1914?